Electrical characteristics
STFPC320
17.4 Electrical specifications
Table 17. Electrical specifications
(TA = -20 to +70 °C, VDD = 3.3 V, GND = 0 V, VSS = VDD – 33.3 V)
Symbol
Parameter
Test conditions
Min Typ Max Unit
VOH1
VOL1
VOL2
High-level output
voltage
Low-level output
voltage
Low-level output
voltage
LED1 – LED4,
IOH1 = -1mA
LED1 – LED4,
IOH2 = 20mA
SDA, IOL2 = 4mA
0.9 VDD
V
1
V
0.6
V
IOH21
IOH22
IOLEAK
High-level output
current
High-level output
current
Driver leakage current
VO = VDD – 2V,
Seg1 to Seg12
VO = VDD – 2 V, Grid1 to
Grid8, Seg13/Grid16 to
Seg12/Grid9
VO = VDD – 33.3 V,
driver off
-3
mA
-15
mA
-10
μA
RL
Output pull-down
resistor
Driver output
50
100 150
kΩ
II
VIH
VIL
VH
IDDdyn
Input current
VI = VDD or GND
High-level input voltage
Low-level input voltage
Hysteresis voltage
Dynamic current
consumption
Under no load,
display OFF
±1
μA
0.7 VDD
V
0.3 VDD V
0.35
V
2
mA
RPU External pull-up resistor SCL, SDA
4.7
kΩ
RPU External pull-up resistor IRQ_N/SQW
10
kΩ
RPD
External pull-down
resistor
READY, KEY1, KEY2
10
kΩ
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